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December <br /> 27, 2412 Lab ID : STK1251139 <br /> San Joaquin County PWD-Solid Waste Div. Customer : 3-2956 <br /> Quality Control- Organic <br /> Constituent Method DatdM Type Units Cone. QC Data DQO Note <br /> Organic <br /> Propionitrile 8260E 12/06/12:218189VRO CCV 119/1- 200.0 237% 50-150 360 <br /> CCV u 200.0 237% 50-150 360 <br /> sec-Butylbenzene 8260B 12/06/12:218189VRG CCV ug/L 25.00 93.2% 70-130 <br /> CCV ug/L 25.00 93.2% 70-130 <br /> Styrene 8260B 12/06/12.218189VRG CCV ug/L 25.00 96.9% 70-130 <br /> CCV ug/L 25.00 96.9% 70-130 <br /> AME 8260B 12/06/12:218189VRG CCV ug/L 25.00 124% 50-150 <br /> CCV 25.00 124% 50-150 <br /> tert-Butanol 8260B 12/06/12:218189VRG CCV 119/1- 125.0 222% 50-150 360 <br /> CCV ug/L 125.0 222% 50-150 360 <br /> tert-Butylbenzene 8260B 12/06/12:218189VRG CCV ug/L 25.00 80.6% 70-130 <br /> CCV u 25.00 80.6% 70-130 <br /> Tetrachloroethylene(PCE) 8260B 12106/12:218189VRG CCV ug/L 25.00 102% 70-130 <br /> CCV u 25.00 102% 70-130 <br /> Toluene 8260B 12/06/12:218189VRG CCV 119/L 25.00 103% 80-120 <br /> CCV UgIL 25.00 103% 80-120 <br /> Toluene-rig 8260B 12/06/12:218189VRG CCV ug/L 25.00 102% 70-130 <br /> CCV ug/L 25.00 102% 70-130 <br /> CCV ug/L 25.00 105% 70-I30 <br /> CCV u 25.00 105% 70-130 <br /> trans-1 8260B 12/06(12:218189VRG CCV 119/L 25.00 112% 70-130 <br /> CCV u 25.00 112% 70-130 <br /> -1,3-Dichloropropene 8260B 12/06/12:218189VRG CCV ug/L 25.00 84.7% 70-130 <br /> CCV u 25.00 84.7% 70-130 <br /> tram-1,4-Dichloro-2-butene 8260B 12/06/12:218189VRG CCV ug/L 20.00 208% 50-150 360 <br /> CCV 119/1- 20.00 208% 50-150 360 <br /> richloroethylene(ME) 8260B 12/06/12:218189VRG CCV ug/L 25.00 975% 70-130 <br /> CCV ug/L 25.00 97.5% 70-130 <br /> richlorofluoromethaneF-11 8260B 12/06(12:218189VRG CCV 119/1- 25.00 115% 70-130 <br /> CCV u 25.00 115% 70-130 <br /> richiorotrifluomethane F-113 8260B 12/06(12:218189VRG CCV ug/L 25.00 109% 70-130 <br /> CCV ug/L 25.00 109% 70-130 <br /> Vinyl Acetate 8260B 12/06(12:218189VRG CCV ug/L 30.00 97.7% 50-150 <br /> CCV u 30.00 197.7% 50-150 <br /> Vinyl Chloride 8260B 12I06(12:218189VRG CCV ug/L 25.00 81.4% 80-120 <br /> CCV u 25.00 81.4% 80-120 <br /> Xylene m p 8260B 12/06112:218189VRG CCV ug(L 50.00 98.7% 70-130 <br /> CCV u 50.00 98.7% 70-130 <br /> Xylenes o 8260B 12/06/12:218189VRG CCV 119/L 25.00 94.8% 70-130 <br /> CCV 25.00 94.8% 70-130 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> LCS :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <br /> MS :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO :Data Quality Objective-This is the criteria a which the ELla control data is compared- <br /> Explanation <br /> 310 :LCS above A tance Ran a(AR).Samples which were non detect for this analyte were EccMted. <br /> Page 27 of 28 <br />